I'm in the middle of moving, currently taking turns with OH to hang out with my poor cats, who are locked away and very stressed! I'm listening to my three excellent removal men who have been genuinely outstanding so far, dismantling several large pieces of furniture which I thought would fit through without batting an eye lid. I'd like to give them a tip (providing the rest of the day goes as well as it has so far), how much is appropriate? 10%? £100?